21.

The Moon at perigee The Moon makes its monthly closest approach to the Earth, making it appear fractionally larger than at other times of the month. Wed, 31 Oct 2018 at 16:22 EDT (2,056 days ago) in Cancer

22.

Moon at Last Quarter The Moon reaches last quarter phase – rising in the east at around midnight and appearing high in the sky by sunrise. Wed, 31 Oct 2018 at 12:40 EDT (2,056 days ago) in Cancer

23.

Close approach of the Moon and M44 The Moon and M44 pass close to each other. Wed, 31 Oct 2018 at 11:44 EDT (2,056 days ago) in Cancer

24.

Conjunction of Jupiter and Mercury Jupiter and Mercury share the same right ascension, at a separation of 3°16'. Mon, 29 Oct 2018 at 23:45 EDT (2,058 days ago) in Libra

25.

The Perseus Double Cluster is well placed The Perseus Double Cluster (NGC 869 and NGC 884; combined mag 4.3) culminates at around midnight local time. Fri, 26 Oct 2018 (2,061 days ago) in Perseus

26.

Venus at inferior solar conjunction Venus passes around the near side of the Sun. Fri, 26 Oct 2018 at 10:11 EDT (2,061 days ago) in Virgo

27.

Leonis Minorid meteor shower 2018 The Leonis Minorid meteor shower reaches its peak. Wed, 24 Oct 2018 (2,063 days ago) in Leo Minor

28.

Full Moon The Moon reaches full phase and is visible for much of the night. Wed, 24 Oct 2018 at 12:45 EDT (2,063 days ago) in Pisces

29.

Uranus at opposition Uranus lies in the opposite direction to the Sun in the sky, making it optimally positioned to be observable for much of the night. Tue, 23 Oct 2018 at 20:38 EDT (2,064 days ago) in Aries

30.

The Moon at aphelion The Moon recedes to its orbit's furthest point from the Sun, which happens each month around the time of full moon. Sun, 21 Oct 2018 at 13:41 EDT (2,066 days ago) in Aquarius

31.

Orionid meteor shower 2018 The Orionid meteor shower reaches its peak. Sun, 21 Oct 2018 (2,066 days ago) in Orion

32.

136108 Haumea at solar conjunction 136108 Haumea is unobservable as it passes around the far side of the Sun – marking the end of one apparition and the beginning of the next. Thu, 18 Oct 2018 at 19:32 EDT (2,069 days ago) in Bootes

33.

ε-Geminid meteor shower 2018 The ε-Geminid meteor shower reaches its peak. Thu, 18 Oct 2018 (2,069 days ago) in Gemini

34.

Conjunction of the Moon and Mars The Moon and Mars share the same right ascension, at a separation of 1°56'. Thu, 18 Oct 2018 at 09:01 EDT (2,069 days ago) in Capricornus

35.

Close approach of the Moon and Mars The Moon and Mars pass close to each other. Thu, 18 Oct 2018 at 08:12 EDT (2,069 days ago) in Capricornus

36.

The Moon at apogee The Moon recedes to its orbit's furthest point from the Earth, making it appear fractionally smaller than at other times of the month. Wed, 17 Oct 2018 at 15:15 EDT (2,070 days ago) in Capricornus

37.

136199 Eris at opposition 136199 Eris lies in the opposite direction to the Sun in the sky, making it optimally positioned to be observable for much of the night. Wed, 17 Oct 2018 at 01:18 EDT (2,070 days ago) in Cetus

38.

Moon at First Quarter The Moon reaches first quarter phase – appearing high in the sky at sunset and setting in the west at around midnight. Tue, 16 Oct 2018 at 14:02 EDT (2,071 days ago) in Sagittarius

39.

Mercury at aphelion Mercury passes the furthest point along its orbit from the Sun. Tue, 16 Oct 2018 at 05:12 EDT (2,071 days ago) in Libra

40.

The Triangulum Galaxy is well placed The Triangulum Galaxy M33 (mag 5.8) culminates at around midnight local time. Mon, 15 Oct 2018 (2,072 days ago) in Triangulum